Ultrathin single-layered membranes from double-walled carbon nanotubes
Document Type
Article
Publication Date
7-4-2006
Abstract
A simple approach to controllably fabricate two-dimensional double-walled carbon nanotubes (DWCNT) membranes of only a few tens of nanometers in thickness, was investigated. The raw DWCNT samples, containing several to tens of thin layers, were prepared by a chemical vapor deposition (CVD) method. Addition of a few drops of ethanol or acetone to the purified DWCNT in water led to the rapid flotation of a DWCNT film to the water surface, which subsequently extended to a large thin film. The thickness of the film was effectively reduced by the H2O2 and HCl purification processes as the amorphous carbon and metal catalysts particles were successfully removed. The tensile tests were carried out on the DWCNT membranes collected from the water surface using aluminum foil pullers with pre-etched hollow patterns. These DWCNT membranes showed high tensile stress, Young's modulus and tensile strain.
Publication Source (Journal or Book title)
Advanced Materials
First Page
1695
Last Page
1700
Recommended Citation
Wei, J., Zhu, H., Li, Y., Chen, B., Jia, Y., Wang, K., Wang, Z., Liu, W., Luo, J., Zheng, M., Wu, D., Zhu, Y., & Wei, B. (2006). Ultrathin single-layered membranes from double-walled carbon nanotubes. Advanced Materials, 18 (13), 1695-1700. https://doi.org/10.1002/adma.200501841